Anti-Tg: anti-thyroglobulin, anti-TPO: anti-thyroid peroxidase, HbA1c: hemoglobin A1c, HDL: high-density lipoprotein, HOMA-IR: homeostatic model assessment of insulin resistance, LDL: low-density lipoprotein, LT4: levothyroxine, sT3: free triiodothyronine, sT4: free thyroxine, TSH: thyroid-stimulating hormone. Here, TPO is linked to Insulin resistance.